[AI] Assistive technology for the disabled

mukesh jain mukesh.jain57 at gmail.com
Sat Jan 26 13:32:19 EST 2008


hullo viraj, nice to read the article of assistive technology. it was
based on practical experience. please keep sharing such good articles
to us. if possible, could you please tell me about yourself?
  thanking you,
  with regards,

On 1/26/08, Viraj <vkafle at gmail.com> wrote:
> Although we may be aware of many of the assistive technologies theorised in
> the article below, the way in which the author has theorised them with
> regards to various disability requirements appears quite interesting. One
> also gets a glimpse of the development towards such technologies in other
> third-world countries. Somehow I couldnt access the URL .
>
> :The Daily Star: Internet Edition
>
> Committed to PEOPLE'S RIGHT TO KNOW
>
> Saturday, January 26, 2008 11:25 PM GMT+06:00
>
> Assistive technology for the disabled
> Farooque Hossain Kamrul
> Disablement, needless to say, significantly reduces the life quality of a
> person as it substantially diminishes their work ability. Assistive or
> adaptive
> technology, however, can bring back the individual's employability at an
> acceptable level.
>
> Unfortunately, most people, even the disabled themselves, in the third world
> countries are not aware that assistive technology may become their real
> friend
> in assisting them in everyday life. I would like to highlight in this
> article some assistive technologies for different types of disabilities;
> before that
> it is worth mentioning what an assistive technology means.
>
> There is no specific definition of Assistive Technology (AT). It simply
> denotes any item, piece of equipment, or system that is used to increase,
> maintain
> or improve functional capabilities of individuals with disabilities.
>
> The definition does not necessarily imply that AT must include computers, or
> that it must be expensive, or that certain medical professionals can only
> prescribe it. This definition permits AT to be restricted by your own
> creativity and imagination.
>
> The followings represent samples of the many types of AT, grouped by the
> nature of a user's disability, that are available.
>
> AT for visual impairments
> Visually impaired users face a great challenge when interacting with
> graphical user interfaces. Typically, they use software applications known
> as screen
> readers that turn the texts, events, and elements in applications and
> websites into synthesised speech. For example, when a user opens a new
> window in
> Microsoft Internet Explorer, a screen reader such as JAWS (Job Access with
> Speech) or Home Page Reader might say "new browser window".
>
> A physically challenged person, I took part in a specialised training
> program last year, where 19 other physically challenged people also
> participated.
> Of them, 12 were visually challenged. I observed with sheer astonishment how
> my visually impaired friends worked smoothly on computer using screen reader
> software like JAWS or FSB reader. They used special key combinations to move
> around screen in order to direct the screen what to read. By listening to
> this speech, they were able to understand a screen's content.
>
> Another AT for the visually challenged is refreshable Braille display, which
> may be used as an alternative to screen reader. These devices convert screen
> text into Braille and display the Braille on a number of cells comprised of
> independently controlled pins. When editing and reviewing text, refreshable
> Braille displays can be much better to work with because a vision-impaired
> user can easily reread characters on the same line and check spelling.
> Screen
> readers are capable of reading words character by character, but the process
> of moving backwards in text to review and then moving forwards can be
> cumbersome.
> Despite their potential advantage, refreshable Braille displays are less
> common due to their higher cost.
>
> In addition, a Braille embosser converts computer-generated text into
> embossed Braille output. Braille translation programs convert text scanned
> in or
> generated via standard word processing programs into Braille, which can be
> printed on the embosser. The results on thick paper are the individual dots
> that constitute Braille characters.
>
> However, choice of appropriate hardware and software will depend on the
> user's level of functional vision. Put another way, it relies on the
> intensity
> of impairment. For example, low-vision users can use hardware such as large
> monitors, adjustable task lamp, Copyholder, closed circuit television,
> modified
> cassette recorder, and scanner to improve visibility. Moreover, this can be
> helpful to people who have difficulty reading or seeing self-voicing
> applications
> such as talking web browsers.
>
> AT for the hearing challenged
> Although hearing impaired individuals encounter less accessibility than the
> visually challenged do, they face tremendous difficulty in terms of
> learning,
> job access and social inclusion. These are due to the traditional way of
> learning.
>
> However, computer technology has emerged as blessing to the hearing
> impaired. As computer prompts such as spoken messages and beeps can be
> misunderstood
> or go unnoticed by hearing impaired individuals, this problem is solved
> through the use of tools that produce visual warning when the system plays a
> sound
> and/or display captions in place of a spoken message. Light signaller alerts
> the computer with light signals. This is useful when a computer user cannot
> hear computer sounds. As an example, a light can flash alerting the user
> when a new e-mail message has arrived or a computer command has completed.
>
> In addition, hearing impaired person can use TTY/TDD (Telecommunication
> Device for the Deaf), which is an electronic device for text communication
> via
> a telephone line, telecare, closed captioning, teletext and multimedia
> projector to address accessibility problem. Moreover, newer text-based
> communication
> methods such as short message service (SMS), internet relay chat (IRC) and
> instant messaging have also been accepted by the deaf as an alternative or
> adjunct
> to TDD.
>
> AT for mobility impairments
> Mobility impairment refers to any condition that limits an individual's
> ability to navigate through their environment. Mobility assistive technology
> products
> and services for the physically challenged are used to ensure freedom of
> movement around the home or office. For example, persons with mobility
> impairment
> can use wheelchair or electric wheelchair to overcome challenges to daily
> activities. A permanent or portable ramp can also help in this regard.
>
> In addition, alternative pointing devices allow mobility-impaired
> individuals to control the mouse pointer via a mechanism other than the
> mouse. These
> are typically used when someone lacks dexterity to manipulate a standard
> mouse. Again, some software exists that converts the keyboard arrow keys
> into
> directional movements for the pointer. Other keys are used to signal a left
> and right mouse click. Besides, for individuals with severe impairments who
> are entirely unable to manipulate the mouse and/or use a standard keyboard
> can use HeadMouse wireless pointing device that converts the movements of a
> user's head into corresponding movements of the mouse pointer by tracking
> the motion of a single point on the user's head. A standard keyboard may be
> completely
> replaced by using this system in conjunction with software that produces an
> on-screen keyboard.
>
> Mobility-impaired individuals may utilise speech recognition applications.
> This software can be used to both control applications via speech commands
> and
> as a means to dedicate text, with speech converted into text in real time.
>
> Disability is not inability; rather, it is a blessing in disguise. If the
> disabled get some opportunity, they can also prove their potential in the
> real
> field. As evidenced by the above descriptions, assistive technology services
> address a variety of disabilities in numerous ways. Regretfully, technology,
> created without regard to people with disabilities, often creates undesired
> hindrances to hundreds of millions of people. We should know that assistive
> technology, or more specifically universally acceptable technology, equally
> yields great rewards for the typical users. One example is the kerb cuts in
> the sidewalk at street crossing. While these kerb cuts enable pedestrians
> with mobility impairments to cross the street, these also aid parents with
> carriages
> and strollers, shoppers with carts, and travellers and workers with
> pull-type bags.
>
> And here in Bangladesh, though the availability of disabled friendly or
> assistive technology is alarmingly low, YPSA -- a specialised non-profit
> social
> development organisation -- is doing some exciting work in this respect. As
> a result, the organisation has been selected by DAISY (Digital Accessible
> Information
> System) Consortium, to ensure information in accessible format for people
> with disabilities (PWDs), especially for the print disabled. We sincerely
> hope
> that other organisations would follow YPSA's effort in this regard to make
> the PWDs lives somewhat easy and enjoyable.
>
> The author, a physically challenged person, is a trainee at Thakral
> Information Systems Pvt Ltd, Dhaka.
>
>
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-- 
Mukesh Jain
  email: mukesh.jain57 at gmail.com
  mobile: 09977165123
  "happiness and joy are the wealth of prosperous life"




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